scholarly journals Speed control of high power multiple drive belt conveyors

2021 ◽  
Vol 27 (1) ◽  
pp. 9-15
Author(s):  
Milan Vasić ◽  
Nenad Miloradović ◽  
Mirko Blagojević
Keyword(s):  
Power Consumption ◽  
High Power ◽  
Material Flow ◽  
Mining Industry ◽  
Electricity Consumption ◽  
Belt Conveyor ◽  
Speed Regulation ◽  
Drive Belt ◽  
Simulation Results ◽  
Belt Conveyors

Belt conveyors play a very important role in the continuous transport o f bulk and piece material, especially in the mining industry. However, the use o f belt conveyors results in high electricity consumption. A reduction in the power consumption can be achieved by adjusting the speed o f the belt conveyor to match the material flow. However, inappropriate and frequent speed changes can cause serious damage to the conveyor elements. This paper presents a procedure for adjusting the belt conveyor speed to match the profile o f the material on the belt, as well as a detailed procedure for determining the time needed to accelerate/decelerate the belt conveyor. The research was performed on an actual 640 m long belt conveyor used for transport o f overburden at the surface mine Drmno (Serbia). The simulation results show that the speed regulation is completely justified because the conveyor operated at speeds lower than nominal throughout the testing.

Power Consumption Model of Permanent-Magnet Direct-Drive Belt Conveyor System Based on GACO–BP

2022 ◽  
Author(s):  
Xuyang Han ◽  
Guimei Wang ◽  
Jiehui Liu ◽  
Lijie Yang ◽  
Pingge Zhang
Keyword(s):  
Power Consumption ◽  
Permanent Magnet ◽  
Total Power ◽  
Direct Drive ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Belt Speed ◽  
Speed Regulation ◽  
Drive Belt ◽  
Consumption Model

Permanent-magnet direct-drive belt conveyors (PMDDBCs) rotate at high speed most of the time, resulting in a large number of invalid energy consumption. To realize the speed regulation of PMDDBC, it is necessary to clarify the relationship between the belt speed, coal quantity of the conveyor and total power of the system. Based on the BP neural network, this paper establishes the power consumption model of PMDDBC, which is related to coal quantity, belt speed and total power. Furthermore, an improved hybrid algorithm (GACO) that combines the advantages of genetic algorithm (GA) and ant colony optimization (ACO) is proposed to optimize the BP power consumption model. The GACO–BP power consumption model is obtained. The original power consumption model is compared with the GACO–BP power consumption model through experiments. Results demonstrate that the GACO–BP power consumption model reduces various prediction errors, while the optimization ability, prediction accuracy and convergence speed are significantly enhanced. It provides a reliable speed regulation basis for the permanent-magnet direct-drive belt conveyor system and also provides a theoretical reference for energy savings and consumption reduction in the coal industry.

Study on Belt Conveyor Direct Driven by External-Rotor PMSM

2012 ◽  
Vol 619 ◽  
pp. 14-17 ◽  
Author(s):  
Gui Hong Feng ◽  
Jian Ying Yu ◽  
Bing Yi Zhang ◽  
Bing Wang ◽  
Han Guang Sun
Keyword(s):  
High Efficiency ◽  
Cooling System ◽  
Direct Drive ◽  
Belt Conveyor ◽  
Transmission Equipment ◽  
Transportation Capacity ◽  
Drive Belt ◽  
Belt Conveyors ◽  
Water Cooling System ◽  
External Rotor

As material transmission equipment, belt conveyor is widely used in coal, electricity, machinery and other industries. This paper proposes a belt conveyor that directly driven by external-rotor PMSM, the drive-roller is the external-rotor, remove coupling, reducer and hydraulic coupling. The new drive system features low power consumption, high efficiency, minimum in size and weight, stable and noiseless action. Ensure the same transportation capacity, taking the SSJ1000/2×75 belt conveyors as object design a 100kW external-rotor PMSM direct drive belt conveyor. The analysis result shows the new PMSM direct drive belt conveyor is feasible; at last, design a water cooling system for the fever problem of the new belt conveyor.

Analysis and Comparison of Soft-Start Systems Applied to Belt Conveyors

2013 ◽  
Vol 321-324 ◽  
pp. 1597-1601 ◽  
Author(s):  
Sheng Zhe Yu ◽  
Yan Yu ◽  
Ning Yu
Keyword(s):  
Research Design ◽  
High Power ◽  
Coal Mines ◽  
Economic Aspects ◽  
Belt Conveyor ◽  
Long Distance ◽  
Work Related ◽  
Soft Start ◽  
Belt Conveyors

For soft-start system of for belt conveyor with long-distance and high-power, this essay, combining with lots of mechatronics research, design, application and commissioning work related with belt conveyor, researched and analyzed structure and governor principle of soft-start devices or systems successfully applied in coal mines or other industries. Furthermore, it evaluated each type of soft-starters in technical and economic aspects, which will play a guiding role in reasonable selection and application of soft starting devices.

DYNAMIC DISTRIBUTED MODEL OF MULTI-DRIVE BELT CONVEYOR

2017 ◽  
pp. 99-110
Author(s):  
Andrey Vladimirovich Zatonskiy
Keyword(s):  
Distributed Model ◽  
System Management ◽  
Type Result ◽  
Belt Conveyor ◽  
Partial Models ◽  
Drive Belt ◽  
Emergency Stop ◽  
Belt Conveyors ◽  
Drive Dynamics ◽  
Simple Schema

The article deals with a problem of long multi-drive belt conveyors modeling. Disadvantages of existed methods prevent from using multi-drive long conveyors for ore reloading. The author has described two types of models. In the first type, all loading is calculated and reduced to a torque on a drum. In the second type, the conveyor operation is closely examined. The methods of the first type result in dot patterns, which optimize conveyor operation in the routine mode. The methods of the second type allow calculating breakage of the belt, but the drive dynamics should be determined beforehand. The author has designed a distributed model of such conveyors based on quite simple partial models of physics of conveyor elements. The whole belt should be divided into short segments, forces acting upon segments being integrated along the belt. Features of segment positions should be taken into account: whether the segment is on a driving drum, on a drum without torque, loaded or unloaded, at the place of loading, reloading, or discharge, etc. The algorithm of forces and accelerations calculation is based on the method of simple iterations. The software includes a simple schema editor and subroutines of a model. The adequacy of the modeling results has been shown in the course of normal conveyor regime, in the course of overloading and slipping. The updated model has been considered to be used for synthesis of the system management, in particular, for developing a program for the loaded conveyor start after emergency stop.

Dynamics of Multiple-Drive Belt Conveyors during Starting

2016 ◽  
Vol 842 ◽  
pp. 141-146
Author(s):  
Indraswari Kusumaningtyas ◽  
Ashley J.G. Nuttall ◽  
Gabriel Lodewijks
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Elastic Response ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Start Up ◽  
Drive Belt ◽  
Stationary Conditions ◽  
Belt Conveyors

In this paper, the dynamics of multiple-drive belt conveyors during starting is discussed. The aim of the research is to determine whether the belt sections in a multiple-drive belt conveyor can be viewed as a single-drive belt conveyor, and whether the DIN 22101 standard for the starting of a single-drive belt conveyor can still be used for the starting of a multiple-drive belt conveyor. A finite element model of a belt conveyor system was built in Matlab, consisting of a model of the belt and its support structure, and a model of the drive system. In this work, the simulations were carried out for the starting procedures of empty belt conveyors with varying number of drives. For each simulation case, the linear start-up procedure was tested. The simulations focused on the study of the axial elastic response of the belt. The simulations revealed that, by using more drives, the maximum belt stress during non-stationary as well as stationary conditions decreased. However, when using reduced starting times, negative stresses occur in the system. Overall, it was observed that the behaviour of each section between two drive stations in the multiple-drive belt conveyor differed from those of the single-drive belt conveyor. Therefore, the DIN 22101 guidelines for the start-up of a single-drive belt conveyor cannot be applied directly for the start-up of a multiple-drive belt conveyor.

scholarly journals SPECIFIC ENERGY CONSUMPTION – THE COMPARISON OF BELT CONVEYORS

Mining Scince ◽  
2019 ◽  
Vol 26 ◽  
Author(s):  
Natalia Suchorab
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Inclination Angle ◽  
Specific Energy ◽  
High Efficiency ◽  
Bulk Material ◽  
Specific Energy Consumption ◽  
Mining Industry ◽  
Belt Conveyor ◽  
Belt Conveyors

Belt conveyors (BCs), because of their high efficiency, are widely used for bulk material handling in the mining industry. However, due to the high level of conveyors’ energy consumption, the belt conveyor systems generate a large part of mining costs. Therefore, the current solutions mostly focus on implementing new management strategies, which find energy consumption as a key indicator in designing belt conveyor systems. Belt conveyor equipment selection, conveying systems, operation, applied mining technology are considered to be areas where improvement of belt conveyors’ energy efficiency may be achieved. Moreover, they can be used to implement novel standards for BC equipment and the proposal of defining new quality standards and creating BCs’ classification has been already outlined. The main idea of the paper is to compare the values of specific energy consumption (SEC) of BCs with regard to the inclination angle of a conveyor route which results from technological needs. The multiple regression is used to find a relationship between two basic independent variables – the volume of transported material and conveyor’s inclination angle – and a dependent variable (SEC). The procedure enables to determine the value of SEC which is required for lifting the material. Presented results prove that the value of SEC required for lifting the material is crucial for the interpretation of the SEC value when it comes to energy efficiency comparison.

scholarly journals Speed regulation strategy and algorithm for the variable-belt-speed energy-saving control of a belt conveyor based on the material flow rate

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247279
Author(s):  
Jianhua Ji ◽  
Changyun Miao ◽  
Xianguo Li ◽  
Yi Liu
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Flow Rate ◽  
Material Flow ◽  
High Energy ◽  
Practical Case ◽  
Belt Conveyor ◽  
Belt Speed ◽  
Speed Regulation ◽  
Energy Saving Control

As an important transportation, the belt conveyor has been widely used and researched. It is urgent to solve the problem of energy saving and consumption reduction of belt conveyor. Aiming at reducing high energy consumption in the rated-speed operation of a belt conveyor, the present paper establishes an energy-saving belt-speed model of a belt conveyor using a polynomial regression-fitting algorithm and a small number of sample observations, and proposes a speed regulation strategy and particle swarm optimization–proportional–integral–derivative algorithm for the variable-belt-speed energy-saving control of a belt conveyor based on the material flow rate. The control strategy and algorithm adjust the running speed of the belt conveyor accurately according to changes in the material flow rate, thus reducing damage of frequent speed regulation to the belt conveyor and saving energy. Simulation analysis of a practical case shows that energy-saving belt-speed model, speed regulation strategy, and algorithm effectively reduce the energy consumption of a belt conveyor, and they thus have high application value in coal, ports, power, mine, metallurgy, chemical, and other industries. Further work in this field can be focused on the prediction of material flow rate of belt conveyor, the controllable adjustment duration of algorithm and the reduction of overshoot.

scholarly journals Research on Segmented Belt Acceleration Curve Based on Automated Mechanical Transmission

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 106
Author(s):  
Yunxia Li ◽  
Lei Li
Keyword(s):  
Simulation Model ◽  
System Modeling ◽  
Angular Acceleration ◽  
Mechanical Transmission ◽  
Belt Conveyor ◽  
Medium Scale ◽  
Soft Starter ◽  
Simulation Results ◽  
Belt Conveyors ◽  
Starting Process

An automated mechanical transmission (AMT) is proposed as a new soft starter for medium-scale belt conveyors in this paper. The AMT is used to start the belt conveyor and shift gears step by step to make the belt conveyor accelerate softly. Based on analyzing common soft-starting acceleration curves, a segmented belt acceleration curve is proposed as a new soft-starting acceleration curve. By analyzing the AMT soft-starting system, the system modeling is built and the AMT output shaft’s angular acceleration is proposed to be controlled to control the belt acceleration. The AMT soft-starting simulation model is established in the environment of AMESim, and simulation results of the soft-starting process from the first to eighth gear positions are given. The main parameter curves of the AMT soft-starting system including the belt, driving pulley, and AMT output shaft are analyzed. The simulation model can indicate the viscoelastic property of the belt. The simulation results prove that the segmented belt acceleration is appropriate for a medium-scale belt conveyor and provide a theoretical and reasonable basis for using an AMT as a soft starter.

Design Technique of High Power Efficiency LLC DC-DC Converters for Photovoltaic Cells

2018 ◽  
Vol 2 (1) ◽  
pp. 30
Author(s):  
Hisatsugu Kato ◽  
Yoichi Ishizuka ◽  
Kohei Ueda ◽  
Shotaro Karasuyama ◽  
Atsushi Ogasahara
Keyword(s):  
High Power ◽  
Power Efficiency ◽  
Photovoltaic Cells ◽  
Input Voltage ◽  
Design Technique ◽  
Load Range ◽  
Voltage Range ◽  
Simulation Results ◽  
Secondary Side ◽  
High Power Efficiency

This paper proposes a design technique of high power efficiency LLC DC-DC Converters for Photovoltaic Cells. The secondary side circuit and transformer fabrication of proposed circuit are optimized for overcoming the disadvantage of limited input voltage range and, realizing high power efficiency over a wide load range of LLC DC-DC converters. The optimized technique is described with theoretically and with simulation results. Some experimental results have been obtained with the prototype circuit designed for the 80 - 400 V input voltage range. The maximum power efficiency is 98 %.

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